It will create ja_newposition position in the template.
Please try to do with my steps:
+ Open templates/ your template / index.php file, find the place where you want to add this position, and then add following code section:
<?php if($this->countModules('ja_newposition')) : ?>
<jdoc:include type="modules" name="ja_newposition" />
<?php endif; ?>
+ Open templates/ your template / templateDetails.xml file, find following code section:
<positions>
<position>breadcrumbs</position>
<position>banner</position>
.....
<position>ja_newposition</position>
</positions>
+ In administrator, go to Extensions -> Module manager -> edit a module. In the preview page, you can see this position in Positions list.
Also, for a reason, you have to open templatesyour templatecsstemplate.css file to add a style for this module.
Hope it helps.